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p.1 #7 · p.1 #7 · Auto-focus speed - 70-300 L versus 300 F4 L | |
Don Clary wrote:
I have both the 300 f4L IS and the 100-400 f4.5-5.6L IS.
I can name some ideas you may not have thought about. A 300mm with f4 aperture (or larger, f2.8), is very good to have in rain forests or other low light conditions.
If you own, or might own, a Canon 5DIII or 1DX in the future, using an f5.6 lens gives you the choice of one (the central) cross sensor. With a f4 lens, you have the choice of 41 cross sensors. This is really important for wildlife photographers.
Don, good points about the 5D3's and 1Dx's AF, center point at f8 is a big bonus as well
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